On Fri, 1 May 2020, Srikar Dronamraju wrote:

> -     for_each_present_cpu(cpu)
> -             numa_setup_cpu(cpu);
> +     for_each_possible_cpu(cpu) {
> +             /*
> +              * Powerpc with CONFIG_NUMA always used to have a node 0,
> +              * even if it was memoryless or cpuless. For all cpus that
> +              * are possible but not present, cpu_to_node() would point
> +              * to node 0. To remove a cpuless, memoryless dummy node,
> +              * powerpc need to make sure all possible but not present
> +              * cpu_to_node are set to a proper node.
> +              */
> +             if (cpu_present(cpu))
> +                     numa_setup_cpu(cpu);
> +             else
> +                     set_cpu_numa_node(cpu, first_online_node);
> +     }
>  }


Can this be folded into numa_setup_cpu?

This looks more like numa_setup_cpu needs to change?

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